John sghnepp



vmi

No. 514,563. lPanterxlten Peb. 13, 1894?..y

INVENTOR @M- wlwisses:

tlnrrnn @rares anni JOHN SCi-INEPF, OF NEWT YORK, N. Y., ASSIGNOR OFONE-HALF TO W'ILLIAM H. BELLAMY, OF SAME PLAGE.

PN EU MATIC SlGNAL=-SWlTCH.

SPECIFICATION forming part of Letters Patent No. 514,503, dated February13, 1894.

Application filed March 15, 1893- Serial No. 466,133i (No model.)

To cZZ whom t may concern:

Beit known that lI, J oHN SCHNEPF, a citizen of the United States, and aresident of the city, county, and State of New York, have invented a newand useful Improvement in Pneumatic Signal-Switches, of which thefollowing is a specilication.

My invention relates to a new and useful improvement in a pneumaticsignal switch of to which the following taken in connection with the`accompanying drawings is a full, clear, and accurate description.

In the accompanying drawings, Figure i is a front view representing anumerated dialx5 a pointer and a push button with its setting device.Fig. 2 is a central vertical section of my pneumatic signal switch. Fig.3 shows the pointer and the indicator setting device. Fig. i is a rearview of my pneumatic signal zo switch.

Corresponding let-ters indicate correspond' ing parts.

A represents a circular base having a stopcocli fitted in its center.

h represents a push button screwed to a rod D, this rod D passes througha central hole in the stop cock indicator and is fastened to thecircular plate E.

d is a washer that is held to the bottom ot 3o the stop-cock casing by ahollow shoulder nut O, so that the rod D can pass through it.

F is an air holder or bellows screwed to the circular plate G by' nutf', having a hole through its center and thereby connecting tube H withI screwed in the casing K.

The stop-cock C has a groove out in its circumference J to be used as anair chamber and a slot J is out in the stop-cock to connect the airspace K with the air space J or 4o grooved circular air chamber.

, L L are tubes screwed in the casingofthe stop-cock K, the severaltubes are shown in Figs. 2 and 4.

Having described the mechanism of my invention, I will now explain itsaction. The revolving indicator is turned to No. l on the dial as shownin Fig. l, the push-button b is pressed inward causing the rod D andthecircular plateE to compress the air holder F, and

forcing the air that it contains into the tubo 5o H, thence to the airchamber J, which connects with a slot or groove marked .I and thence totube L. It will be seen that the springfin the air holder acts on thepush-button plate to bring it into its normal position. By my invention,as may be readily seen, signals may be given at any desired number ofdifferent points. As shown in the drawings, there are eight otsuchpoints, and as above' suggested all that is necessary is to 6o turn thestop-cock in such manner that the index finger or pointer c shall pointto such one of the figures on the dial as correspond .with the place orlocality to which the signal is to be sent. Thereupon pressure upon thethumb button l) actuates the air compressor and the air is forcedthrough the appropriate tube L to the desired place. Ot course there areas many of these tubes L as there are places to be con1iected-wtl1,they7o heilig arranged around the dial, as already indicated.

Having described my invention, what I claim is l. A pneumatic signalswitch, comprising the following elements, a stop cock provided with anair passage or groove, a yielding air compressing device, a rod tocompress the said device, a tube connecting with said groove in thestop-cock, and other tubes con- 8o necting with an air passage in thestop-cock, which connects with said groove therein, substantially as setforth.

2. A pneumatic signal switch, comprising the following elements, a stopcock, pro- S5 vided with an air passage or groove, an opener upon saidstop-cock, an index or dial adjacent to the opener, a yielding aircompress ing device, a rod to compress the said device,

a tube connecting the said device with said 9o groove in the stop-cockand other tubes connecting with an air passage in the stop-cock, whichconnects with said groove therein, substantially as set forth.

3. A pneumatic signal switch comprising g5 the following elements, astop cock provided with an air passage or groove, a yielding aircompressing device, a rod to compress the said device, Which passesthrough the stopmy invention I have signed my name, in prescoek, a tubeconnecting the said device with. ence of two witnesses, this 14th day ofMarch, said groove in the stop-oook and other tubes 1893.

connecting with an ail' passage in the stopf JOHN SCHNEPF. 5 oook, Whichconnects with said groove there- Witnesses:

in, substantially as set forth. FRANCIS F. ATKINSON,

In testimony that I claim the foregoing as 'W1/I. H. BELLAMY, Jr.

